Skręcane elementy z betonu sprężonego w świetle wybranych badań doświadczalnych

• Autorzy: Seruga A. , Sokal P.

Warianty tytułu

EN

Prestressed concrete torsion elements in view of selected experimental investigations

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono badania przeprowadzone poza granicami Polski z zakresu skręcania konstrukcji sprężonych. Szczególna uwaga zwrócona jest na eksperymenty wykonane w Ameryce Północnej i na Bliskim Wschodzie. Wspomniane są badania przeprowadzone przed 1978 rokiem. Badania z tych lat dotyczą przede wszystkim elementów o typowych kształtach i bez stosowania dodatkowych materiałów wzmacniających. Dokładniej omówione zostają te wykonane w latach 1978–2011. Przedstawiono również eksperymenty wykonane na elementach z otworami oraz na elementach, w których zastosowano fibrobeton, a także wzmocnienie matami CFRP. Omówiono również badania dotyczące długotrwałego skręcania.

EN

The paper presents researches, which were conducted in the world on torsional behavior of prestressed concrete elements. Particular attention is paid to researches carried out in the North America and the Middle East. Some experiments, which took place before 1978 are mentioned. More recent researches from 1978–2011 are discussed. Older experiments were conducted on typical elements, which did not contain any strengthening. Researches on elements with openings, and specimens made of concrete containing steel fibers or strengthened with CFRP sheets are also presented. Experiments connected with sustained torque are discussed.

Słowa kluczowe

PL

badanie skręcania; skręcanie elementów sprężonych; przegląd badań

EN

overview of research; research on torsion; torsion of prestressed concrete

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Czasopismo Techniczne. Budownictwo
• Rocznik: 2012
• Tom: R. 109, z. 4-B
• Strony: 119--131
• Opis fizyczny: Bibliogr. 22 poz., tab., il.

Twórcy

autor

Seruga A.

• Instytut Materiałów i Konstrukcji Budowlanych, Wydział Inżynierii Lądowej, Politechnika Krakowska

autor

Sokal P.

• Instytut Materiałów i Konstrukcji Budowlanych, Wydział Inżynierii Lądowej, Politechnika Krakowska

Bibliografia

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• [2] Hsu T.T.C., Torsion of Structural Concrete – Uniformly Prestressed Rectangular Members without Web Reinforcement, PCI Journal, 13(2): 34-44, 1968.
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• [17] Hasnat A., Wafa F.F., Akhtaruzzaman A.A., Prestressed Concrete Beams with Small Opening under Torsion, Journal of Structural Engineering, ASCE, V114(7), 1626-1643, 1988.
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• [19] Allos A.E., Rashid A.H., Prestressed concrete rectangular beams subjected to sustained torque, ACI Structural Journal, V.86(4), 469-472, 1989.
• [20] Wafa F.F., Hasnat A., Tarabolsi O.F., Prestressed fiber reinforced concrete beams subjected to torsion, ACI Structural Journal, V.89(3), 1992.
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• [22] Mahmood M.N., Mahmood A.Sh., Torsional behavior of prestressed concrete beams strengthened with CFRP sheets, 16th International Conference on Composite Structures, edycja: Ferreira A. J. M., Porto, 2011, (http://works.bepress.com/cgi/viewcontent.cgi?article=1005&-context=akram_mahmood)